GATE CE 2020 Paper 1 — page 8

Questions 22–24 of 65. Imported answers require review unless explicitly marked reviewed.

Velocity of flow is proportional to the first power of hydraulic gradient in Darcy’s law. This law is applicable to

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laminar flow in porous media

transitional flow in porous media

turbulent flow in porous media

laminar as well as turbulent flow in porous media

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A body floating in a liquid is in a stable state of equilibrium if its

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metacentre lies above its centre of gravity

metacentre lies below its centre of gravity

metacentre coincides with its centre of gravity

centre of gravity is below its centre of buoyancy

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Uniform flow with velocity U makes an angle θ with the y-axis, as shown in the figure

. The velocity potential (Φ), is

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±U(x sin θ + y cos θ)

±U(y sin θ − x cos θ)

±U(x sin θ − y cos θ)

±U(y sin θ + x cos θ)

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2020 · Paper 1